Well I was looking on Cooper Lighting/Eaton's area lighting, and they stopped making the Galleria area light fixtures. So TXDOT probably going to start using LEDs on high masts, since Cooper Lighting/Eaton has stopped making the Galleria, which TXDOT uses for their high mast poles.

http://www.cooperindustries.com/content/public/en/lighting/products/area_site_lighting.html

Yeah, although it's nice that a lot of Cooper's LED fixtures are real cobra head. Plus they still make the OVX, RMA and Vanguard III fixtures that I like, in HPS.